Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6044201 | Container with heat or cold dispensing material comprising hydrogel with crosslinked hydrophilic polymer | — | 2000-03-28 |
| 4749348 | Apparatus for manufacturing an electret filter medium | Petrus T. A. Klaase | 1988-06-07 |
| RE32171 | Method for the manufacture of an electret fibrous filter | — | 1986-06-03 |
| 4588537 | Method for manufacturing an electret filter medium | Petrus T. A. Klaase | 1986-05-13 |
| 4456648 | Particulate-modified electret fibers | Jan W. C. Adamse | 1984-06-26 |
| RE31285 | Method for manufacturing a filter of electrically charged electret fiber material and electret filters obtained according to said method | Johannes C. Rieke | 1983-06-21 |
| 4363860 | Photoconductive polyimide coating upon a substrate | Ramesh C. Ahuja | 1982-12-14 |
| 4355089 | Process for producing a photoconductive polyimide coating upon a substrate | Ramesh C. Ahuja | 1982-10-19 |
| RE30782 | Method for the manufacture of an electret fibrous filter | — | 1981-10-27 |